/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:57,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:57,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:57,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:57,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:57,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:57,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:57,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:57,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:57,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:57,717 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:57,718 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:57,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:57,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:57,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:57,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:57,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:57,720 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:57,720 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:57,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:57,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:57,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:57,989 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:57,989 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:57,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_6.c.bpl [2025-02-17 22:45:57,991 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_6.c.bpl' [2025-02-17 22:45:58,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:58,008 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:58,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:58,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:58,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:58,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,028 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:58,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:58,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:58,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:58,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:58,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:58,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:58,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:58,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:58,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:58,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:58,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:58,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:58,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:58,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:58,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:58,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:58,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:45:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:45:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:45:58,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:45:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:45:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:45:58,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:45:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:45:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:45:58,117 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:58,156 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:58,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:58,249 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:58,249 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:58,263 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:58,263 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:58,264 INFO L201 PluginConnector]: Adding new model indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:58 BoogieIcfgContainer [2025-02-17 22:45:58,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:58,264 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:58,265 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:58,270 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:58,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:58,271 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/2) ... [2025-02-17 22:45:58,272 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@528bc207 and model type indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:58, skipping insertion in model container [2025-02-17 22:45:58,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:58,272 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:58" (2/2) ... [2025-02-17 22:45:58,273 INFO L363 chiAutomizerObserver]: Analyzing ICFG indep_loops_6.c.bpl [2025-02-17 22:45:58,347 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-17 22:45:58,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 140 flow [2025-02-17 22:45:58,397 INFO L124 PetriNetUnfolderBase]: 6/37 cut-off events. [2025-02-17 22:45:58,401 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-17 22:45:58,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 37 events. 6/37 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-02-17 22:45:58,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 49 transitions, 140 flow [2025-02-17 22:45:58,412 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 37 transitions, 110 flow [2025-02-17 22:45:58,421 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:58,421 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:58,421 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:58,421 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:58,421 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:58,421 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:58,421 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:58,421 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:58,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:59,239 INFO L131 ngComponentsAnalysis]: Automaton has 1267 accepting balls. 6636 [2025-02-17 22:45:59,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:59,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:59,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:59,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:59,243 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:59,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 6826 states, but on-demand construction may add more states [2025-02-17 22:45:59,392 INFO L131 ngComponentsAnalysis]: Automaton has 1267 accepting balls. 6636 [2025-02-17 22:45:59,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:59,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:59,393 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:59,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:59,398 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:59,399 INFO L754 eck$LassoCheckResult]: Loop: "[93] L29-->L31: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[95] L31-->L29: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:59,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 149, now seen corresponding path program 1 times [2025-02-17 22:45:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786822275] [2025-02-17 22:45:59,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:59,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:59,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:59,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,468 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:59,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:59,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:59,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:59,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:59,491 INFO L85 PathProgramCache]: Analyzing trace with hash 3939, now seen corresponding path program 1 times [2025-02-17 22:45:59,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:59,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632762141] [2025-02-17 22:45:59,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:59,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:59,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:59,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:59,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,502 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:59,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:59,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:59,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:59,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash 146167, now seen corresponding path program 1 times [2025-02-17 22:45:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:59,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451679000] [2025-02-17 22:45:59,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:59,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:59,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:59,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,525 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:59,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:59,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:59,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:59,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:59,630 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:59,631 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:59,631 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:59,631 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:59,631 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:59,631 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,631 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:59,631 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:59,631 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:59,632 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:59,632 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:59,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:59,692 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:59,693 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:59,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:59,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:59,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:59,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:59,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:59,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:59,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:59,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:59,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:59,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:59,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:59,803 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:59,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:45:59,808 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:59,808 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:59,808 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:59,808 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:59,808 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:59,808 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,808 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:59,808 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:59,808 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:59,808 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:59,808 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:59,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:59,838 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:59,842 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:59,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:59,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:59,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:59,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:59,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:59,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:59,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:59,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:59,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:59,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:59,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:59,871 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:59,878 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:59,878 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:59,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:59,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:59,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:59,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:59,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:59,885 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:59,886 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:59,886 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:45:59,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:45:59,915 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:59,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:45:59,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:59,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:59,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:59,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:59,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:59,981 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:59,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:59,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:00,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:00,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:00,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:00,001 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:00,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:00,102 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:00,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 6826 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:00,803 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 6826 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19109 states and 121850 transitions. Complement of second has 6 states. [2025-02-17 22:46:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2025-02-17 22:46:00,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 89 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-17 22:46:00,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:00,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 89 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:46:00,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:00,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 89 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-17 22:46:00,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:00,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19109 states and 121850 transitions. [2025-02-17 22:46:01,302 INFO L131 ngComponentsAnalysis]: Automaton has 1505 accepting balls. 6510 [2025-02-17 22:46:01,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19109 states to 14629 states and 94157 transitions. [2025-02-17 22:46:01,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6633 [2025-02-17 22:46:01,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10631 [2025-02-17 22:46:01,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14629 states and 94157 transitions. [2025-02-17 22:46:01,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:01,667 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14629 states and 94157 transitions. [2025-02-17 22:46:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14629 states and 94157 transitions. [2025-02-17 22:46:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14629 to 10633. [2025-02-17 22:46:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10633 states, 10633 states have (on average 6.63077212451801) internal successors, (70505), 10632 states have internal predecessors, (70505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10633 states to 10633 states and 70505 transitions. [2025-02-17 22:46:02,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10633 states and 70505 transitions. [2025-02-17 22:46:02,391 INFO L432 stractBuchiCegarLoop]: Abstraction has 10633 states and 70505 transitions. [2025-02-17 22:46:02,391 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:46:02,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10633 states and 70505 transitions. [2025-02-17 22:46:02,489 INFO L131 ngComponentsAnalysis]: Automaton has 1505 accepting balls. 6510 [2025-02-17 22:46:02,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:02,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:02,490 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:46:02,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:02,490 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[121] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:46:02,490 INFO L754 eck$LassoCheckResult]: Loop: "[97] L38-->L40: Formula: (< v_x2_1 v_z_3) InVars {x2=v_x2_1, z=v_z_3} OutVars{x2=v_x2_1, z=v_z_3} AuxVars[] AssignedVars[]" "[99] L40-->L38: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:46:02,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash 4740, now seen corresponding path program 1 times [2025-02-17 22:46:02,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:02,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854502645] [2025-02-17 22:46:02,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:02,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,494 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:02,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:02,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:02,497 INFO L85 PathProgramCache]: Analyzing trace with hash 4067, now seen corresponding path program 1 times [2025-02-17 22:46:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:02,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369836091] [2025-02-17 22:46:02,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:02,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:02,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,500 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:02,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:02,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash 4558246, now seen corresponding path program 1 times [2025-02-17 22:46:02,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:02,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67293520] [2025-02-17 22:46:02,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:02,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:02,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:02,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:02,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,506 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:02,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:02,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:02,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:02,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:02,529 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:02,529 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:02,529 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:02,529 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:02,529 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:02,529 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,530 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:02,530 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:02,530 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:02,530 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:02,530 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:02,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:02,551 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:02,551 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:02,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:02,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:02,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:46:02,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:02,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:02,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:02,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:02,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:02,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:46:02,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:02,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:02,643 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:02,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:02,649 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:02,649 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:02,649 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:02,649 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:02,649 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:02,649 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:02,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:02,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:02,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:02,649 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:02,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:02,670 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:02,670 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:02,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:02,672 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:02,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:46:02,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:02,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:02,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:02,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:02,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:02,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:02,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:02,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:02,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:02,692 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:02,693 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:02,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:02,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:02,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:02,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:46:02,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:02,698 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:02,699 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:02,699 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:46:02,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:02,706 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:02,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:02,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:02,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:02,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:02,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:02,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:02,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:02,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:02,741 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:02,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:02,758 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:02,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10633 states and 70505 transitions. cyclomatic complexity: 61709 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:03,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10633 states and 70505 transitions. cyclomatic complexity: 61709. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32675 states and 225290 transitions. Complement of second has 6 states. [2025-02-17 22:46:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2025-02-17 22:46:03,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 91 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:46:03,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:03,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 91 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:46:03,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:03,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 91 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:46:03,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:03,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32675 states and 225290 transitions. [2025-02-17 22:46:04,479 INFO L131 ngComponentsAnalysis]: Automaton has 1790 accepting balls. 6230 [2025-02-17 22:46:04,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32675 states to 24489 states and 169853 transitions. [2025-02-17 22:46:04,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8751 [2025-02-17 22:46:04,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13370 [2025-02-17 22:46:04,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24489 states and 169853 transitions. [2025-02-17 22:46:04,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:04,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24489 states and 169853 transitions. [2025-02-17 22:46:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24489 states and 169853 transitions. [2025-02-17 22:46:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24489 to 19870. [2025-02-17 22:46:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19870 states, 19870 states have (on average 7.2187720181177655) internal successors, (143437), 19869 states have internal predecessors, (143437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19870 states to 19870 states and 143437 transitions. [2025-02-17 22:46:05,783 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19870 states and 143437 transitions. [2025-02-17 22:46:05,783 INFO L432 stractBuchiCegarLoop]: Abstraction has 19870 states and 143437 transitions. [2025-02-17 22:46:05,783 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:46:05,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19870 states and 143437 transitions. [2025-02-17 22:46:05,965 INFO L131 ngComponentsAnalysis]: Automaton has 1790 accepting balls. 6230 [2025-02-17 22:46:05,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:05,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:05,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:46:05,966 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:05,966 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[121] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[124] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-02-17 22:46:05,966 INFO L754 eck$LassoCheckResult]: Loop: "[101] L47-->L49: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[103] L49-->L47: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:46:05,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash 147064, now seen corresponding path program 1 times [2025-02-17 22:46:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991572390] [2025-02-17 22:46:05,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:05,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:05,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:05,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:05,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,971 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:05,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:05,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:05,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:05,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash 4195, now seen corresponding path program 1 times [2025-02-17 22:46:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297901288] [2025-02-17 22:46:05,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:05,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:05,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:05,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,976 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:05,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:05,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:05,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:05,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash 141331738, now seen corresponding path program 1 times [2025-02-17 22:46:05,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:05,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267705001] [2025-02-17 22:46:05,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:05,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:05,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:05,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:05,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,986 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:05,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:05,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:05,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:05,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:05,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:06,139 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:06,140 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:06,140 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:06,140 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:06,140 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:06,140 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,140 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:06,140 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:06,140 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:06,140 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:06,140 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:06,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:06,157 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:06,157 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:06,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:06,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:06,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:46:06,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:06,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:06,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:06,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:06,182 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:06,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:46:06,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:06,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:06,251 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:06,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:06,255 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:06,255 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:06,255 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:06,255 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:06,255 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:06,255 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,255 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:06,255 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:06,255 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:06,255 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:06,255 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:06,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:06,272 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:06,272 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:06,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:06,276 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:06,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:46:06,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:06,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:06,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:06,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:06,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:06,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:06,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:06,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:06,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:06,295 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:06,295 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:06,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:06,298 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:06,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:46:06,301 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:06,301 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:06,301 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:06,301 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-02-17 22:46:06,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:46:06,307 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:06,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:06,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:06,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:06,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:06,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:06,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:06,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:06,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:06,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:06,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:06,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:06,334 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:06,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:06,345 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:06,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19870 states and 143437 transitions. cyclomatic complexity: 126368 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:06,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:07,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19870 states and 143437 transitions. cyclomatic complexity: 126368. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62628 states and 462615 transitions. Complement of second has 6 states. [2025-02-17 22:46:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2025-02-17 22:46:07,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:46:07,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:07,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:46:07,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:07,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:46:07,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:07,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62628 states and 462615 transitions. [2025-02-17 22:46:08,784 INFO L131 ngComponentsAnalysis]: Automaton has 2005 accepting balls. 5670 [2025-02-17 22:46:09,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62628 states to 44778 states and 331130 transitions. [2025-02-17 22:46:09,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12781 [2025-02-17 22:46:09,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17316 [2025-02-17 22:46:09,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44778 states and 331130 transitions. [2025-02-17 22:46:09,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:09,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44778 states and 331130 transitions. [2025-02-17 22:46:09,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44778 states and 331130 transitions. [2025-02-17 22:46:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44778 to 37696. [2025-02-17 22:46:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37696 states, 37696 states have (on average 7.657125424448218) internal successors, (288643), 37695 states have internal predecessors, (288643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37696 states to 37696 states and 288643 transitions. [2025-02-17 22:46:11,535 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37696 states and 288643 transitions. [2025-02-17 22:46:11,536 INFO L432 stractBuchiCegarLoop]: Abstraction has 37696 states and 288643 transitions. [2025-02-17 22:46:11,536 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:46:11,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37696 states and 288643 transitions. [2025-02-17 22:46:12,079 INFO L131 ngComponentsAnalysis]: Automaton has 2005 accepting balls. 5670 [2025-02-17 22:46:12,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:12,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:12,080 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:46:12,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:12,080 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[121] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[124] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[127] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" [2025-02-17 22:46:12,080 INFO L754 eck$LassoCheckResult]: Loop: "[105] L56-->L58: Formula: (< v_x4_1 v_z_7) InVars {x4=v_x4_1, z=v_z_7} OutVars{x4=v_x4_1, z=v_z_7} AuxVars[] AssignedVars[]" "[107] L58-->L56: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" [2025-02-17 22:46:12,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash 4559111, now seen corresponding path program 1 times [2025-02-17 22:46:12,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:12,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073371820] [2025-02-17 22:46:12,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:12,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:12,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:12,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:12,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,084 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:12,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:12,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:12,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:12,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash 4323, now seen corresponding path program 1 times [2025-02-17 22:46:12,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:12,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831489228] [2025-02-17 22:46:12,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:12,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:12,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:12,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:12,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,091 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:12,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:12,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:12,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:12,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:12,095 INFO L85 PathProgramCache]: Analyzing trace with hash 86341737, now seen corresponding path program 1 times [2025-02-17 22:46:12,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:12,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591379995] [2025-02-17 22:46:12,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:12,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:12,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:12,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,102 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:12,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:12,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:12,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:12,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:12,120 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:12,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:12,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:12,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:12,120 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:12,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:12,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:12,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:12,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:12,120 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:12,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:12,135 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:12,135 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:12,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:12,137 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:12,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:46:12,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:12,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:12,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:46:12,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:12,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:12,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:46:12,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:12,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:12,228 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:12,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:46:12,232 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:12,233 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:12,233 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:12,233 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:12,233 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:12,233 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,233 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:12,233 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:12,233 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:12,233 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:12,233 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:12,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:12,249 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:12,250 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:12,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:12,252 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:12,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:46:12,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:12,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:12,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:12,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:12,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:12,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:12,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:12,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:12,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:12,271 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:12,271 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:12,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:12,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:12,273 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:12,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:46:12,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:12,275 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:12,275 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:12,275 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:46:12,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:46:12,281 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:12,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:12,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:12,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:12,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:12,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:12,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:12,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:12,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:12,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:12,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:12,309 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:12,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:12,322 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:12,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37696 states and 288643 transitions. cyclomatic complexity: 255251 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:12,608 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe [2025-02-17 22:46:12,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:46:14,316 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37696 states and 288643 transitions. cyclomatic complexity: 255251. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 113120 states and 875155 transitions. Complement of second has 6 states. [2025-02-17 22:46:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-02-17 22:46:14,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 99 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:46:14,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:14,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 99 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:46:14,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:14,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 99 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:46:14,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:14,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113120 states and 875155 transitions. [2025-02-17 22:46:16,977 INFO L131 ngComponentsAnalysis]: Automaton has 1962 accepting balls. 4606 [2025-02-17 22:46:18,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113120 states to 75142 states and 580055 transitions. [2025-02-17 22:46:18,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18103 [2025-02-17 22:46:18,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22122 [2025-02-17 22:46:18,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75142 states and 580055 transitions. [2025-02-17 22:46:18,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:18,710 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75142 states and 580055 transitions. [2025-02-17 22:46:18,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75142 states and 580055 transitions. [2025-02-17 22:46:20,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75142 to 65282. [2025-02-17 22:46:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65282 states, 65282 states have (on average 7.942082044055023) internal successors, (518475), 65281 states have internal predecessors, (518475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65282 states to 65282 states and 518475 transitions. [2025-02-17 22:46:21,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65282 states and 518475 transitions. [2025-02-17 22:46:21,353 INFO L432 stractBuchiCegarLoop]: Abstraction has 65282 states and 518475 transitions. [2025-02-17 22:46:21,353 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:46:21,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65282 states and 518475 transitions. [2025-02-17 22:46:22,328 INFO L131 ngComponentsAnalysis]: Automaton has 1962 accepting balls. 4606 [2025-02-17 22:46:22,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:22,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:22,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:46:22,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:22,330 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[121] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[124] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[127] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[130] L15-->L65: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar4_2 5) (= v_thread5Thread1of1ForFork4_thidvar1_2 5) (= v_thread5Thread1of1ForFork4_thidvar0_2 5) (= v_thread5Thread1of1ForFork4_thidvar3_2 5) (= v_thread5Thread1of1ForFork4_thidvar2_2 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_2, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_2, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_2, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_2, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4]" [2025-02-17 22:46:22,330 INFO L754 eck$LassoCheckResult]: Loop: "[109] L65-->L67: Formula: (< v_x5_1 v_z_9) InVars {x5=v_x5_1, z=v_z_9} OutVars{x5=v_x5_1, z=v_z_9} AuxVars[] AssignedVars[]" "[111] L67-->L65: Formula: (= v_x5_2 (+ v_x5_3 1)) InVars {x5=v_x5_3} OutVars{x5=v_x5_2} AuxVars[] AssignedVars[x5]" [2025-02-17 22:46:22,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:22,330 INFO L85 PathProgramCache]: Analyzing trace with hash 141332571, now seen corresponding path program 1 times [2025-02-17 22:46:22,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:22,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866231338] [2025-02-17 22:46:22,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:22,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:22,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:22,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:22,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,335 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:22,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:22,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:22,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:22,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash 4451, now seen corresponding path program 1 times [2025-02-17 22:46:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:22,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714582573] [2025-02-17 22:46:22,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:22,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:22,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:22,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,344 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:22,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:22,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:22,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:22,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1618349251, now seen corresponding path program 1 times [2025-02-17 22:46:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:22,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282080172] [2025-02-17 22:46:22,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:22,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:22,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:22,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,352 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:22,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:22,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:22,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:22,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:22,369 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:22,369 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:22,369 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:22,369 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:22,369 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:22,369 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,370 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:22,370 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:22,370 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:46:22,370 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:22,370 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:22,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:22,385 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:22,385 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:22,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:22,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:22,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:46:22,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:22,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:22,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:46:22,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:22,409 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:22,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:46:22,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:22,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:22,476 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:22,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:46:22,481 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:22,481 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:22,481 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:22,481 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:22,481 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:22,481 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,481 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:22,481 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:22,481 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:46:22,481 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:22,485 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:22,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:22,518 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:22,518 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:22,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:22,521 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:22,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:46:22,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:22,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:22,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:22,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:22,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:22,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:22,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:22,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:22,539 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:22,546 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:22,546 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:22,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:22,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:22,553 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:22,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:46:22,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:22,555 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:22,555 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:22,555 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-02-17 22:46:22,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:46:22,561 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:22,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:22,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:22,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:22,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:22,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:22,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:22,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:22,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:22,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:22,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:22,589 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:22,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:22,607 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:22,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65282 states and 518475 transitions. cyclomatic complexity: 459485 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:23,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:46:25,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65282 states and 518475 transitions. cyclomatic complexity: 459485. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 183520 states and 1462697 transitions. Complement of second has 6 states. [2025-02-17 22:46:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-02-17 22:46:25,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:46:25,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 7 letters. Loop has 2 letters. [2025-02-17 22:46:25,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:46:25,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183520 states and 1462697 transitions. [2025-02-17 22:46:30,824 INFO L131 ngComponentsAnalysis]: Automaton has 1365 accepting balls. 2730 [2025-02-17 22:46:32,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183520 states to 101034 states and 802953 transitions. [2025-02-17 22:46:32,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21369 [2025-02-17 22:46:32,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24182 [2025-02-17 22:46:32,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101034 states and 802953 transitions. [2025-02-17 22:46:32,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:32,844 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101034 states and 802953 transitions. [2025-02-17 22:46:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101034 states and 802953 transitions. [2025-02-17 22:46:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101034 to 90174. [2025-02-17 22:46:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90174 states, 90174 states have (on average 8.123882715638654) internal successors, (732563), 90173 states have internal predecessors, (732563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90174 states to 90174 states and 732563 transitions. [2025-02-17 22:46:37,095 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90174 states and 732563 transitions. [2025-02-17 22:46:37,095 INFO L432 stractBuchiCegarLoop]: Abstraction has 90174 states and 732563 transitions. [2025-02-17 22:46:37,095 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:46:37,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90174 states and 732563 transitions. [2025-02-17 22:46:38,380 INFO L131 ngComponentsAnalysis]: Automaton has 1365 accepting balls. 2730 [2025-02-17 22:46:38,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:38,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:38,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:46:38,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:38,382 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[121] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[124] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[127] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[130] L15-->L65: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar4_2 5) (= v_thread5Thread1of1ForFork4_thidvar1_2 5) (= v_thread5Thread1of1ForFork4_thidvar0_2 5) (= v_thread5Thread1of1ForFork4_thidvar3_2 5) (= v_thread5Thread1of1ForFork4_thidvar2_2 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_2, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_2, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_2, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_2, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4]" "[133] L16-->L74: Formula: (and (= v_thread6Thread1of1ForFork5_thidvar3_2 6) (= v_thread6Thread1of1ForFork5_thidvar5_2 6) (= v_thread6Thread1of1ForFork5_thidvar4_2 6) (= v_thread6Thread1of1ForFork5_thidvar2_2 6) (= v_thread6Thread1of1ForFork5_thidvar0_2 6) (= v_thread6Thread1of1ForFork5_thidvar1_2 6)) InVars {} OutVars{thread6Thread1of1ForFork5_thidvar0=v_thread6Thread1of1ForFork5_thidvar0_2, thread6Thread1of1ForFork5_thidvar1=v_thread6Thread1of1ForFork5_thidvar1_2, thread6Thread1of1ForFork5_thidvar2=v_thread6Thread1of1ForFork5_thidvar2_2, thread6Thread1of1ForFork5_thidvar3=v_thread6Thread1of1ForFork5_thidvar3_2, thread6Thread1of1ForFork5_thidvar4=v_thread6Thread1of1ForFork5_thidvar4_2, thread6Thread1of1ForFork5_thidvar5=v_thread6Thread1of1ForFork5_thidvar5_2} AuxVars[] AssignedVars[thread6Thread1of1ForFork5_thidvar0, thread6Thread1of1ForFork5_thidvar1, thread6Thread1of1ForFork5_thidvar2, thread6Thread1of1ForFork5_thidvar3, thread6Thread1of1ForFork5_thidvar4, thread6Thread1of1ForFork5_thidvar5]" [2025-02-17 22:46:38,382 INFO L754 eck$LassoCheckResult]: Loop: "[113] L74-->L76: Formula: (< v_x6_1 v_z_11) InVars {x6=v_x6_1, z=v_z_11} OutVars{x6=v_x6_1, z=v_z_11} AuxVars[] AssignedVars[]" "[115] L76-->L74: Formula: (= v_x6_2 (+ v_x6_3 1)) InVars {x6=v_x6_3} OutVars{x6=v_x6_2} AuxVars[] AssignedVars[x6]" [2025-02-17 22:46:38,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:38,383 INFO L85 PathProgramCache]: Analyzing trace with hash 86342538, now seen corresponding path program 1 times [2025-02-17 22:46:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:38,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089835955] [2025-02-17 22:46:38,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:38,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:38,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:38,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:38,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,393 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:38,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:38,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:38,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:38,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash 4579, now seen corresponding path program 1 times [2025-02-17 22:46:38,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:38,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307965430] [2025-02-17 22:46:38,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:38,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:38,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:38,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:38,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,409 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:38,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:38,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:38,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:38,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1370804012, now seen corresponding path program 1 times [2025-02-17 22:46:38,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:38,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098121744] [2025-02-17 22:46:38,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:38,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:38,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:46:38,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:46:38,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,421 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:38,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:46:38,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:46:38,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:38,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:38,451 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:38,451 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:38,451 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:38,451 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:38,451 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:38,451 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,451 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:38,451 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:38,451 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:46:38,451 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:38,451 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:38,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:38,467 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:38,467 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:38,470 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:38,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:46:38,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:38,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:38,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:38,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:38,501 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:46:38,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:38,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:38,573 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:38,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:46:38,578 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:38,578 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:38,578 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:38,578 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:38,578 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:38,578 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,578 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:38,578 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:38,578 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_6.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:46:38,578 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:38,578 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:38,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:38,596 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:38,596 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:38,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:38,598 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:38,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:46:38,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:38,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:38,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:38,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:38,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:38,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:38,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:38,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:38,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:38,620 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:38,621 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:38,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:38,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:38,623 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:38,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:46:38,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:38,625 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:38,625 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:38,626 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x6) = 1*z - 1*x6 Supporting invariants [] [2025-02-17 22:46:38,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-17 22:46:38,632 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:38,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:38,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:38,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:38,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:38,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:38,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:38,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:38,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:38,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:38,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:38,670 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:38,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:38,681 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:38,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 90174 states and 732563 transitions. cyclomatic complexity: 650090 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:39,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:46:42,663 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 90174 states and 732563 transitions. cyclomatic complexity: 650090. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 212582 states and 1698208 transitions. Complement of second has 6 states. [2025-02-17 22:46:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-02-17 22:46:42,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:46:42,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:42,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 8 letters. Loop has 2 letters. [2025-02-17 22:46:42,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:42,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:46:42,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:42,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212582 states and 1698208 transitions. [2025-02-17 22:46:48,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:48,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212582 states to 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:46:48,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:46:48,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:46:48,326 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-17 22:46:48,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:46:48,326 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:48,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:46:48,333 INFO L201 PluginConnector]: Adding new model indep_loops_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:46:48 BoogieIcfgContainer [2025-02-17 22:46:48,333 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:46:48,333 INFO L158 Benchmark]: Toolchain (without parser) took 50325.30ms. Allocated memory was 167.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 93.8MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 5.3GB. Max. memory is 8.0GB. [2025-02-17 22:46:48,334 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:48,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.49ms. Allocated memory is still 167.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:48,334 INFO L158 Benchmark]: Boogie Preprocessor took 17.05ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 91.7MB in the end (delta: 688.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:48,334 INFO L158 Benchmark]: RCFGBuilder took 214.69ms. Allocated memory is still 167.8MB. Free memory was 91.7MB in the beginning and 82.3MB in the end (delta: 9.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:46:48,334 INFO L158 Benchmark]: BuchiAutomizer took 50068.24ms. Allocated memory was 167.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 82.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 5.3GB. Max. memory is 8.0GB. [2025-02-17 22:46:48,335 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.49ms. Allocated memory is still 167.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.05ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 91.7MB in the end (delta: 688.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 214.69ms. Allocated memory is still 167.8MB. Free memory was 91.7MB in the beginning and 82.3MB in the end (delta: 9.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 50068.24ms. Allocated memory was 167.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 82.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 5.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x5 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x6 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 49.9s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.4s. Büchi inclusion checks took 11.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 10.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 36417 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 20.8s Buchi closure took 0.3s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 411 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 405 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 552 IncrementalHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 186 mSDtfsCounter, 552 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:46:48,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:46:48,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...